Tap for containers



Sept. 26, 1933. 5 p ps 1,928,263

TAP FOR CONTAINERS Filed April 23,' 1932 MENTOR. (124W fwfw Patented Sept. 26, 1933 1' UNITED STATES.

PATENT-,VOQFFICE 1,928,263 7 'r P' For, CONTAINERS Clive Selsey Phillips, London, England, assignor to Phillips Telescopic Taps Limited, London,

England Application April 23, 1932, 'Serial No. 607,177,

r and'in GreatBritain August 5, 1931 '30 Claims. (c1. 221--21) 1,

An object of theinvention is to provide an eflicient tap of this character for use with highly penetrating liquids of low viscosity According to this, invention, a tap of the type described comprises a tubular outlet member, the

outer endrof whichis, closed and in the wall of which an outlet opening is provided arranged normally to be covered, and a valve carried by said tubular member and arranged tocontrol' the said outlet opening and operable automatically to be actuated to open the outlet after the same is uncovered upon withdrawalof the memberfrom the container, the said valv'e be ing arranged] to be moved automatically toclose the said outlet upon. an initial movement of the tubular member in the reverse direction to close the tap. I This construction of tap ensures a rapid cutofffor the flow ofthe liquid therethrough, whilst providing an extremely simple construction which is economicalto produce. v 'The'invention is more particularly described 1 hereinafter and defined in'the appendedclaims. In order that the invention may be fully under stood, reference is directed to the accompanying drawing, in which: v Q Figure 1 illustrates 1 in side elevation a' tap constructed in accordance with, the invention and showing the tap in the closed position. Figure 2 is a view at right angles to Figure. 1 illustrating the outer end of the tap.

Figure 3 is a section 'on' the line 3 -3 or Fi g ,0'i ure 2 and illustrating the tap in the open position.

Figure 4 is a section on the line 44 of Figure 3. a

Figure 5 is'a perspective detail view a packing element illustrated in Figures 1 to 4, and

Figure 6 is a side elevation partly in' section of a modified formof tap.-

Referring to'Figures 1 to 5 a tap is illustrated which comprises a hexagonaltube 1 mounted so as to be slidable in an axial directionxwithin' anannular chamber in the form of abush 2 ,an auxiliary flange 12 of thebush 2.

the flange to be screwed or riveted to the barrel with the interposition of asealing washer 6. A tubular extension 3 of the flangeB is :pref- 'crably tapered as illustrated to enable itto be made a tight fit within an opening in the barrel. When used with metal containers the supporting flanged member is normally omitted and the tap is soldered direct to the container on the flange 12 An aperture in the inner end 7 of, the bush 2 through which the tube 1 extends is of a configuration conforming to the cross-section of the tube 1 and thereby prevents rotation of the tube relatively to the flange member -3.

Within the bush 2a series of flexible annular packing elements are mounted, each consisting of two flat rings of cork 8 cemented upon either side of aring of fabric 9, Figures 3 and 5. 1 The inner configuration of the packing elements conforms to that of the tube 1 and the elements are arranged to bear upon the outside of the tube with sealing contact. The packing elementsare confined and sealed within the bush 2 by a ring member 10, Figure 3, which is pressed against the outermost element by a pair of di- 50 ametrically opposed projections 11 formed upon Theouter end of the tube 1 is closed byadisc l3 and is provided with a cap l4 rotatably mount! ed upon the tube 1- and having' a pair of diametrically opposed projections 15 arranged, when the tube is moved into the extreme inward position relatively to the container to pass'through slots 16 in the auxiliary flange 12 and upon rotation of the cap 14 the projections 15 engage with inclined surfaces 17 and force the flange of the cap towards the flange 12; A washer 18 is disposed between the capand the flangel2 so that when the cap is firmly secured in position it is impossible for liquid to seep past the cap ,iroin 90 the container. A bail 19 is mounted upon the cap 14 to facilitate the manipulation of the tap.

-The lower' wall of the tube 1 is provided with an aperture 20, Figure 3, which, when the tube is locatedrin its extreme inward position, is covered by the packing elements 8. A valve 21 is carried bya spring blade 22'secured within the tube 1 and is normally arranged to close-the opening 20. A relatively stiff wire member 23is secured to the spring 22 and is provided with an extension 24 which is arranged, upon withdrawal of the tubefrom the washer member 3, to abut against the rear end of the wall of the bush 2,

so that a further withdrawal of the tube to its extreme outward position opens the valve and pair of adjacent washers.

ranged to contact with the outer surface of permits fluid to flow through the tube and escape through the outlet opening 20. A notch 24 .is formed in the extension 24 which is arranged to engage beneath the edge of the end wall 7 and lock the valve in the open position as shown in Figure 3. Immediately the tube 1. is movedinwardly the notch 24 is disengaged from the edge of the wall 7 and the valve Zl'closes the opening 20 before it reaches the flange l2 and the wall of the container.

' A perforated lug 25 is provided upon the flange 12 to enable the bail 19 to be wired and sealed thereto when necessary. I a

In the modified form of tap illustrated in Figure 6 the packing between the tube 1 and the bush 2 comprises a series of rubber, cork or similar wash-.

ers 8a with a metal ring 26 located between each The washers are arthe tube 1 similarly to the washers 8, 9 in the previous example, whilst the internal dimensions of the metal rings. 26 are greater than the external dimensions of the tube, thus providing spaces between the rings andthe tube. Both this construction and that above described provide a flexibility in packing which ensures a minimum frictional contact between the washers and the tube, whilst the accurate contact between the washers and the tube is maintained. In Figure 6 a hexagonal dished flange 3 is provided in lieu of the flange 3 shown in Figure 1 and has a screwed ferrule 27 secured thereto to permit the tap to be screwed into a bush provided upon a container or a back nut may be screwed on to the ferrule 27 interiorly of the container for the purpose of securing the tap thereto, and in' this case the hexagonal flange 3 may be arranged to belocated within a hexagonal recess provided in the container and there- 40 by enable the correct location of the outlet opening 20'to be readily attained.

The non-rotatable mounting of the movable tube 1 of the tap ensures that the outlet opening 20 is always located in a downwardly directed position which, particularly in the case of liquids of relatively low viscosity, is an important feature,as otherwise the liquid might be projected in a'stream directed to one side or upwardly upon opening the tap, depending upon the positionin which the outlet opening happened tobe, It will be appreciated that anyother polygonal section of tube maybe employed and that the tube may be circularin' section and a pin and guide slot provided to prevent rotation thereof; I

In a modification the sealing cap may be arranged to screw on to a screw-threaded ferrule provided upon the flange 3.

WhatI claim and desire to secure by Letters Patent 'is: I

1. A tap' for fluids which comprises in combinationa bush adapted for securing the tap to a container, 2. tubular'outlet member extending through and slidably mounted in said bush, said outlet member being closed at its outer end and means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof and to'close saidoutlet opening during movement of 'the'tubular meminternal ber in the opposite direction and before the outlet opening reaches said bush.

2. Atap for fluids which comprises in combination a single tubular outlet member slidably mounted in a bush adapted for securing the tap to a container, an outlet opening in said outlet 'member normally located within said bush, a

valve normally closing said opening and means operable automatically to actuate said valve and open said outlet opening upon partial withdrawal of said tubular member from said bush only after said openinghas been moved beyond said bush andto close said opening during movement of the tubular member in the opposite direction and before the outlet opening reaches the bush.

3.'A tap for fluids which comprises in combinationfa bush adapted for securing the tap to a container, a tubular outlet member extending through and slidably mounted in a non-rotatable manner in said bush, said outlet member being' closed at its outer end andprovided with an outlet'opening in the wall thereof which is covered by said bush when said outlet member is in the innermost position relatively to said bush, a valve carried by said outlet member and normally closing said outlet opening'and means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the'bush only after the outlet opening has been moved beyond the outer end thereof and to close said outlet opening during movement of the tubular member in the opposite direction and before the outlet opening reaches said bush.

4. A tap for'fiuids which comprises in combination a bush adapted for securing the'tap to a container, packing in said bush, a tubular outlet member slidably mounted in said bush and extending L through said packing, said outlet member .being closed at its outer end and provided with an outlet opening in the wall thereof which is covered bysaid bush when said outlet member is in the innermost position relatively to said bush, a valve carried by said outlet member and normally closing said outlet opening and means operable automatically to actuate said valve'and open said outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outerend thereof and to close said outlet opening during movement of the tubular member in the opposite direction and before the outletopening reaches said bush.

'5. A tap for fluidswhichcomprises in combination a bush adapted for securing the tap to a containenpacking in said bush, a tubular outlet member slidably mounted in'said bush in a non-rotatable manner and extending through saidpacking, said outlet member being closed at itsouter end and provided with an, outlet opening in the wall thereof which is covered by said bush. when said outlet member is in the innermost position relatively to said bush, a'valve carried bysaidoutlet member and normally closing said outlet opening and means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof and to close said outlet opening during movement of the tubularmember in the opposite direction and before the outlet opening reaches said bush.

t 6. A tap for fluids which comprises in combination a single tubular outlet member slidably in said outlet member normally located within said bush, a valve normally closing said-opening and means operable automatically to actuate vided with an'outlet opening in the wall thereof which-is covered by said bush when said outlet member is in the innermost 'positionrelatively to said valve and open said outlet opening upon partial withdrawal of said tubulanmember fromv said bush only after said opening has been moved beyond said bush and to close said opening during movement of the tubular member in the opposite direction and; before the outlet opening reaches the bush.

7. A tap .for fluids which comprisesin combination'a bush adapted for securing the tap to a container, a tubular outlet member polygonal in cross-section extending through. and slidably mounted in said bush, said outlet member being closed at its outer end and provided with an outlet opening in the wall thereof which is covered by said bushwhen said'outlet member is in the innermost positionrelatively to said bush, avalve carried by said outlet member and normally clos-V ing said outlet opening and means'operable automatically to actuate asid valve and open said outlet opening as the tubular member is with drawn from the bush only after the outlet open- 7 8. A tap for fluids which comprises in combination abush adapted for-securing the tap -to a Y container, packing insaid'bush, a tubular outlet" member polygonal in cross-section, slidably mounted in said bush in anon-rotatablemanner and extendingthrough said packing, said outlet member being closed at its outer end and prosaid bush; a valve carried by said outlet member and normally closing said outlet opening and means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from'the bushonly after the outlet'opening has been moved beyond the "9; 'Atap for 'fluidswhich comprises in combi nation a bush adapted for securing the tap to a container, a tubular outletmember slidably mounted in' said bush, said outlet memberbeing closed at its outer end and provided with an outlet opening in the wall thereof which is coveredv by saidbush when said outlet member is in' the innermost position relatively to said bush, a yieldinglycontrolled valve movably mounted on said outlet member and normally closing said outlet opening, an operative member on said valve arranged to abut against said bush to move: the valvefto open said outlet opening onlyafter the same has been moved beyond said bush during the withdrawal of said outlet member and means operable to-maintain said valve inthe open position against said yielding control untilsaid outlet member is initially moved'to closethe tap and said valve adapted to close the outlet opening before the same reaches the bush, 10. Atap for fluidswhich comprises" in combi nation a single tubular outlet member slidably mounted in a bush adapted for securing the tap tea container, anoutlet opening in'said outlet member normally located within, said bush, a yieldinglycontrolled valve movably mounted on said outlet member and normally closing said outlet opening, an operative member on said valve arranged to abut against said bush to move the valve to open said outlet opening only after the same hasbeen moved beyond saidbush during the withdrawal of said outlet member and means operable tovmaintain said valve'in the open posiin the wall thereof which is covered by said bush when said outlet member is in the innermost posi tion relatively to said bush, a. yicldingly controlled valve movably mounted on said outlet member and normally closing said outlet opening, an

operative member on said valve arranged to abut against said bush to move the valve to open saidoutlet opening only after the same :has' been moved beyond said bush during the withdrawal of said outlet member and means operable to maintainsaid valve in the open position against said yielding control until said outlet member is initially moved to close the tap and said valve adapted to close the outlet opening before the same reaches the bush, Y i

r 12. A tap .for fluids which compriseslin combination abush-adapted for securing the tap to a container, a tubular outlet member extending through and slidably mountedin said bush, said outlet member being closed at its outer end and provided with an outlet opening in the wall thereof which is covered by said bush when said outlet member is in the innermost position relatively to said bush, a valve carried by said outletmember and normally closing said outlet opening, means operableautomatically to actuate said valve and open said-outlet opening as the tubular member is withdrawn from the bush onlyafterthe outlet opening has-been moved beyond the outer end thereof and'to close said outlet opening during movement of the tubular'member in the opposite direction and before the outlet opening reaches said bush; and-means operablepositively to lock and sealisaid outlet member to said bush when the tap is closed.- I 4 I i 13. A tap for fluids which comprises in combination a single tubular outlet member slidably mounted in a bushadapted for securing the :tap to a container, an outlet opening in said outlet member normally located within said bush, a valve normally closing said opening, means op erable automatically'to actuate said valve and open said outlet openingupon-partial withdrawal of said tubular member from said bush onlyafter said opening has been moved beyond said bush andto close saidbpening' during movement of the tubular member in the opposite direction and before the-outlet opening reaches the bush, and means operable-positively to lock and seal said outletmember to -said bush when the tap is closed. "14. A tap for fluids which comprises in combination a bush adapted for securing the'tap to a container, a tubular outlet member extend ing through and slidably 'mountedina non-rotatable manner in said bush, said outlet member being closedat its. outer end and provided with an outlet opening in the wall thereof which is covered by said bush when said outlet member is'in the innermost position relatively to said bush, a valve'carried by'said outlet member and normally closing said outlethopening, means operable automatically to actuate said valve and open said outlet opening as the tubular member is-withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof andto close said outlet opening during movement of. the tubular member in' theoppositedirection and before the outlet opening reaches the bush and rotatable meanscarried by said outlet member operable positively to lock and seal said member to said'bush when the tap is closed. Y

15. A tap for fluids which comprises in combination a bush adapted for securing the .tap to a'container, packing in said bush, a tubular outlet member slidably' mounted in said bush in a non-rotatable manner and extending through said packing, said outlet member being closed at its outer end and-provided with an outlet opening in the wall thereof which is covered by said bush-when said outlet member is in the innermost position relatively to said bush, a valve carried by saidoutlet -member and normally closing said outlet opening, means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush onlyafter the outlet opening has been moved beyond the outer end thereof and to close said outlet opening during movement of the tubular member in the opposite direction and before-the outlet opening reaches said bush and rotatable means carried by' said outlet member operable positively to lock and seal said member to said bush when the tap is closed. v

16.,Atap forfluids which comprises in combination a single tubular outlet member slidably mounted in a-bush adapted for securing the tap to a container, packing in 'said bush and surrounding said outlet member, an outlet opening in said outlet member normally located within said bush, a valve normally closing said opening, means operable automatically to aotuate said valve and open said outlet opening upon partial withdrawal of said tubular 'member from said bush only after said opening has been moved beyond. said bush'and to close saidopening during movement of the tubular. member in the opposite direction and before the outlet opening reaches the bush and rotatable means carried by said outlet member operable positively to lock and seal said member to said bush when the tap is closed.-

17. A tap for fluids which comprises in combi- I nation a bush adapted for securing the tap to a container, packing in said bush, a tubular outlet member polygonal in cross-section, slidably mounted in saidbush in a non-rotatable manner and extending through said packing, said outlet member being closed at its outer end and provided with anoutlet opening in the wall thereof which is covered by said bush when said outlet member is in the innermostposition relatively to said bush, a valve carried by said outlet member and normally closing said outlet opening, means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof and to close said outlet opening during movement of the tubular member in the opposite direction and before the outlet opening reachessaid bush and rotatable means-carried by said outlet member. operable positively to lock and seal said member to said bush when thetap is closed.

, 18. Altap for fluids which comprises in, combination a bush adapted for securing the tap to a container, a -tubular outlet member slidably mounted in saidbush, said 'outletrmember being closed at its outer, end and provided with an outlet opening in thetwall thereof which is covered by said bush when said outlet member is in the innermost position relatively to said bush, ayieldingly controlled valve, movably mounted on said outlet member and normally closing said outlet opening, an operative member on said valve arrangedto abut against said bush to move the valve to open said outlet opening only after the same has been moved beyond saidbush during the withdrawal of said outlet member, means operable to maintain said valve in the open position against said yielding control until, said outlet member is initially moved to'close the tap and said valve adapted to close the outlet opening before the same reaches the bush and rotatable means carried by said outlet member operable positively to lock and seal said member to said bush when the tap is closed.

19. A tap for fluids which comprises in combination a bush adapted, for securing the tap to a container, packing in said bush consisting of a series of annular disc elements of flexible material sealed at their peripheries within said bush, a tubular outlet member slidably mounted in said bush and extending through said packing and engaged frictionallyaround its circumference by each of said disc elements, saidoutlet member being closed at its outer end and provided with an outlet opening in the'wall thereof which is covered by said bush when said outlet member is in the innermost position relatively to said bush,

- a valve carried by said outlet member and normally closing said outlet opening and means operableautomatically to actuate said valve and open said outlet opening as the tubular member is series of annular disc elements of flexible material sealed at their peripherieswithin said bush, a tubular outlet member slidably mounted in a non-rotatable manner in said bush and extending through said packing and engaged frictionally around its circumference by each of said disc ele ments, said'outlet member being closed at its outer end and provided with an outlet opening in the wall thereof which is covered by said bush when said outlet member is'in the innermost position relatively to said bush, a. valve carried by said outlet member and normally closing said outlet openingand means operable automatically to actuate saidvalve and open said outlet opening as the tubular. member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof and to close said outlet openingduring movement of the tubular member inthe opposite direction andgbefore th outlet opening reaches said bush. V 21. A tape for fluids which comprises in combination a bush adapted for securing the tap to a containenpacki'ng in said bush consisting of a series of annular disc elements of flexible material sealed, at their peripheries, within said bush, a tubular outlet member polygonal in crosssection slidably mounted in a non-rotatable manner in said bush and extending through said packing and engaged frictionally around itscircumference by each of said'disc elements, said outlet member being closed at its outerend and provided with'an outlet opening in the wall thereof which iscoveredby said bush when said outlet member is in theinnermost position relatively to said bush, a valve carried bysaid outlet-member and normally closing said outlet opening and I means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the, bush only after the outlet opening-has been moved beyond the outer end thereof and to "close said outletopening during movement of the tubular member in the opposite direction and before the outlet opening reaches said bushl i V 22, A tap for fluids which comprises in combination abush adapted for securing the tap to a container, packing in said bush consisting of a series of annular disc elements, of flexible ma-v terial sealed at their peripheries'within said bush, a tubular outlet memberslidably mounted in a non-rotatable manner in said bush and extending through, said packing and engaged fric tionally around its circumference by eachof said disc elements, said outlet member being closed at its outerend and provided with an outlet open-. ing in the wallthereof which is covered by said bush when said outlet member is in the innermost position relatively to saidbush, a yieldingly controlled valve movably mounted on said outlet member and normally closing saidoutlet opening, an operative member onsaidvalve arranged to abut against said bus h to move the valve to' open said outlet opening only after the same has beenmoved beyond said bush during the withdrawal of said outlet member and means operable to maintain said valve in the open position against said yielding control until said outlet member is initially moved to close the tap and said valve adapted to close the outlet opening before the same reaches the bush. V 7' 23.}A tapfor fluids which comprises in combination a bush adapted for securing the tap to a container, packing in said bush consisting of a series of annular disc elements of flexible material sealed at their peripheries within said bush, a tubular outlet member slidably mounted in ,a non-rotatable manner in said bush and extending through said packing and engaged frictionally around its circumference by each of said disc elements, said outlet member being closed at its outer end and provided with an outlet opening in the wall thereof which is covered by saidbush when said outlet member is in the innermost position relatively to said bush, a valve carried by said outlet member and normally closing said outlet opening, means operable automatically to actuate said valve and opensaid outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof, and to close said outlet opening during movement of the tubular member in the opposite direction and before the outlet opening reaches said bush, and means operable positively to lock and seal saidoutlet memberto said bush when the tap is closed.

24. A tap for fluidswhich comprisesin come 7 bination a bush adapted for securing the tap .to a container, packing in said bush consisting of a series of annular disc elements of flexible material sealed, at their peripheries within said bush, a tubular outlet member slidably mounted in a non-rotatable manner in said'bush and exsaid outlet opening as the tubular member is withdrawn from the bush only-after the outlet opening has been; moved beyond the. outer end thereof and to close said outlet opening during movement of the tubular member in the opposite direction and before the outlet opening reaches the bush and, rotatable means carried by said outlet member operable positively to lock and seal said member to said bush when the tap is closed. i

25. A tap for fluids which comprisesin combination a bush adapted for securing the tap to a container, packing in said bush consisting of a series of annular disc elementsrof flexible material scaledat their peripheries within said bush and separated from one another by rings the internal diameter of which is greater-than the internal diameter of said elements, a tubular outlet member slidably mounted in said bush and extending through said packingand engaged frictionally around its circumference by each of said disc elements, said outlet member being closed at its outer end and provided with an outlet opening in the wallthereof which is coveredby said bush when said outlet member is I in the innermost position relatively to said bush;

a valve carried by said outlet member and normally closing said outlet opening and meansoperable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof and to closesaid outlet openingduring movement of the tubular member in the opposite direction and before the outlet opening reaches said bush.

26. A .tap for fluids which comprises in combination a bush adapted for securing the tap to a container, packing in said bush'con'sisting of a series of annular disc elements of flexiblematerialsealed at their peripheries within said bush and separated'from one another by rings the internal diameter of which is greater-than the internal diameter of the said elements, a tubular outlet member slidably mounted in a non-rotatable manner in said bush and extending through said packing and engaged frictionally around its circumference by each of said disc elements, said outlet member being closed at its outer end and provided with an outlet opening in the wall thereof which is covered by said bush when said outlet member is in the innermost position relatively to said bush, a valve carried by said outlet member and normally closing said outlet opening and means operable autom'atically to actuate said valve and open said outlet opening as' the tubular member is withdrawn from the bush. only after the outlet openinghas been'moved beyond the outer end thereof and to close said outlet opening during movement of the tubular member in the opposite direction andbefore the outlet opening reaches said bush. 27. A tap for fluids-which comprises in combination a bush adapted for securing the tap to acontainer, packing in said bush consisting of V a series of annular disc elements of flexible material'sealed at their peripheries within said bush'and separated from oneanother by rings the internal diameter of which is greater'than the internal'diameter of the said elements,a tubular outlet member polygonal in cross-section slidably mounted in a non-rotatable manner in said bush and extending through said packing andengaged frictionally around its circumfering during movement of the tubular member in the opposite direction" and before the outlet opening reaches said bush.

28 A tap for fluids, which comprises in com bination a bush adapted for securing the tap to a container, packing in said bush consisting of a series of annular disc elements of flexible material sealed at their peripherieswithin said bush and separated from one another-by rings the internal diameter of which is' greater than the internal diameter of the said elements, a tubular outlet member slidably mounted in a non-rotatable manner in said bush and extending through said packing and engaged frictionally around its circumference by each of said disc elements, said outlet member being closed at its outer end and provided with an outlet opening in the wall thereof which is coveredby said bushwhen said outlet member is in the innermost position relatively to said bush, a yieldingly controlled valve movably mounted on said outlet member and normally closing said outlet opening, an operative member on said valve arranged to abut against said bush to move the valve to open said outlet opening only after the same has been moved beyond said bush during the withdrawal of said outlet member'and means operable to maintain said valve in the open position against said yielding control until said outlet member is initially i moved to close the'tap and said valve adapted to close the outlet opening before the same reaches the bush. a I

29. A tap for fluids which comprises in combination a bush adapted for securing the tap to a container, packing insaid bush consisting of a series of annular disc elements of flexible material sealed attheir peripheries within said bush and separated'from one another by rings the internal diameter of which is greater than the internal "diameter of the said elements, a tubular outlet member slidably mounted in a non-rotatable manner in said bush and extending through said packing and engaged frictionally'around its circumference by each of said disc elements, said outletmember being closed at its outer end and. provided with an outlet opening in the wall thereof which is covered by said bush when said outlet member is in the innermost position rela tively to said bush, a valve carried by said outlet member'and normally closing said outlet open' ing,means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush only after the outlet opening has been moved beyond the outer end thereof and to close said outlet opening during movement of the tubular member in the opposite direction and before the outlet opening reaches said bush, and means operable positively to lock and seal "said outlet member to said bush when the tap is closed.

30. A tap for fluids which comprises in combination a bush adapted for securing the tap to a container, packing in said bush consisting of a series of annular disc elements of flexible material sealed at their peripheries within said bush and separated from one another by rings the internal diameter 'of which is greater than the internal diameter of the said elements, a tubular outlet member slidably mounted in a non-rotatable manner in said bush and extending through said packing and engaged frictionally around'its circumference by each of said disc elements, said outlet member being closed at its-outer end and provided with an outlet opening in the wall thereof which is covered by said bush when said outlet member is in the innermost position relatively to said bush, a valve carried by said outlet member and normally closing said outlet opening, means operable automatically to actuate said valve and open said outlet opening as the tubular member is withdrawn from the bush' only after the outlet opening has been moved beyond the outer end thereof and to close said CLIVE SELSEY PHILLIPS. 

